Geographic location
Rugosa
Greene
110
Nutt
106
Miers
82
Webb
80
Blanco
77
Schott
74
Molina
72
Nivea
66
Elliott
57
Laxa
56
Burch
45
Gand
45
Ribes
45
Reut
43
Rhamnus
43
Argentina
42
Beck
41
Malus
41
Ortega
40
Nash
39
Dyer
36
Italica
36
Sav’
36
Buckley
35
Parry
34
Recta
34
Bolle
33
Lowe
33
Rapa
33
Inga
32
Ruta
32
Abrams
31
Antarctic
31
Bory
31
Hayne
31
Wiegand
31
Alta
28
Forbes
28
Sheppard
27
Degen
26
Fissa
26
Padus
26
Baja
25
Dewey
25
Heywood
25
Giganteus
24
Khaya
24
Parodi
24
Morton
23
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